tl;dr
- Bridging from Base to Arbitrum allows users and projects to access new DeFi ecosystems, boost token utility, and expand reach across two distinct L2 networks.
- ChainPort makes the bridging process simple, fast (1–2 minutes), and secure, with full asset custody retained throughout.
- The flat 0.3% bridging fee is among the lowest in the industry, with minimal gas costs on Base and Arbitrum.
- ChainPort’s audited, security-first infrastructure ensures safe and reliable cross-chain transfers.
What Is Base to Arbitrum Bridging?
Base to Arbitrum bridging refers to transferring tokens between two leading Layer 2 networks built on Optimism’s OP-rollup technology. Base, developed by Coinbase, and Arbitrum, one of the most widely adopted L2s. Despite their shared rollup roots, Base and Arbitrum host distinct ecosystems, communities, and dApps.
Bridging tokens between them allows users and token issuers to tap into new audiences, DeFi protocols, and use cases without leaving the Ethereum security model. This kind of cross-chain interaction boosts liquidity, expands token utility, and enhances exposure across two different L2s.
Why Move Tokens from Base to Arbitrum?
Moving tokens from Base to Arbitrum increases exposure by reaching a broader user base. Listing on DEXs across both chains can boost trading volume and create arbitrage opportunities, enhancing liquidity and market activity for the token.
Multi-chain presence is key to maximizing a project’s reach and utility.
How to Bridge Tokens from Base to Arbitrum
Step 1 - Connect Your Wallet
Go to ChainPort's bridge (https://app.chainport.io/) and connect your wallet. ChainPort supports Ledger, Trezor, Coinbase Wallet, Wallet Connect, and Metamask wallets. Select the wallet with the Base-based tokens you wish to bridge to Arbitrum.

Step 2 - Select the Chains & Token
In the drop-down menu, select the source blockchain and token. In our case, the source chain is Base. Select Arbitrum as the target chain.

Step 3 - Confirm Tx & Get Tokens
Review all related information, including gas fees and the token, before confirming the transaction. Once you have confirmed all details, approve the transaction and wait a few minutes for it to be processed. Afterward, your tokens have been successfully bridged from Base to Arbitrum.

What Are the Bridging Fees?
ChainPort applies a flat 0.3% fee on each bridging transaction, among the lowest in the industry. This fee helps maintain the protocol, fund security audits, and support continued development. Users always retain full control of their assets.
Additionally, gas fees are required but are generally low on Layer 2 chains like Base and Arbitrum, keeping the overall cost of bridging low.
How Long Does the Bridging Take?
Bridging tokens between Base and Arbitrum via ChainPort is fast and straightforward, typically taking just 1–2 minutes. In rare cases of network congestion, the process may take slightly longer.
Is Bridging Safe via ChainPort?
Yes, bridging with ChainPort is safe. As a security-centric cross-chain bridge, ChainPort is built with multiple layers of protection to safeguard user funds. It has undergone several third-party security audits to verify the robustness of its smart contracts, ensuring a secure bridging experience.